10.48364/ISIMIP.736682 Michel Bechtold Michel Bechtold 0000-0002-8042-9792 Florian Zabel Florian Zabel 0000-0002-2923-4412 Benjamin Poschlod Benjamin Poschlod 0000-0003-0247-2514 Christian Otto Christian Otto 0000-0001-5500-6774 Jan Volkholz Jan Volkholz 0000-0002-2533-3739 Matthias Büchner Matthias Büchner 0000-0002-1382-7424 ISIMIP Repository 2026 EARTH SCIENCE > ATMOSPHERE Michel Bechtold Michel Bechtold 0000-0002-8042-9792 Florian Zabel Florian Zabel 0000-0002-2923-4412 Benjamin Poschlod Benjamin Poschlod 0000-0003-0247-2514 Matthias Büchner Matthias Büchner 0000-0002-1382-7424 Jochen Klar Jochen Klar 0000-0002-5883-4273 Paul Kühnel Paul Kühnel 0009-0001-3454-7130 Stefanie Heinicke Stefanie Heinicke 0000-0003-0222-5281 Christian Otto Christian Otto 0000-0001-5500-6774 Franziska Piontek Franziska Piontek 0000-0003-4305-7552 Dánnell Quesada-Chacón Dánnell Quesada-Chacón 0000-0001-5700-1846 Christopher P.O. Reyer Christopher P.O. Reyer 0000-0003-1067-1492 Inga Sauer Inga Sauer 0000-0002-9302-2131 Jacob Schewe Jacob Schewe 0000-0001-9455-4159 Jan Volkholz Jan Volkholz 0000-0002-2533-3739 Martin Park Martin Park 0000-0002-2467-3256 Katja Frieler Katja Frieler 0000-0003-4869-3013 Potsdam Institute for Climate Impact Research (PIK) 03e8s1d88 2026-04-13 en Input dataset https://doi.org/10.5194/essd-12-2097-2020 https://doi.org/10.5194/gmd-16-5383-2023 https://doi.org/10.48364/ISIMIP.982724.3 https://doi.org/10.5281/zenodo.17551135 https://github.com/flozabel/Teddy 1.0 CC0 1.0 Universal Public Domain Dedication This dataset provides hourly atmospheric climate data derived from temporal disaggregation of daily ISIMIP3a climate input data (Lange et al., 2025) using the version 1.3 of the Teddy tool (Zabel and Poschlod, 2023).<br>This dataset provides hourly factual (obsclim) and counterfactual (counterclim) atmospheric climate input data for the four historical reconstructions 20CRv3, 20CRv3–ERA5, 20CRv3–W5E5, and GSWP3–W5E5. Additionally, it provides a 50-year transition (spin-up) dataset for GSWP3–W5E5 covering 1851–1900, intended to allow model spin-up before switching into either obsclim or counterclim forcing, which is also provided in hourly resolution.<br>It includes the following variables: humidity (hurs [%]), precipitation (pr [mm h-1]), air pressure (ps[hPa]), incoming longwave solar radiation (rlds[W m-2]), incoming shortwave solar radiation (rsds[W m-2]), 10m wind speed (sfcwind[m s-1]), 2m air temperature (tas[K]). Snowfall and specific humidity are not included but can be estimated from other provided fields. We disaggregate daily ISIMIP climate input data to hourly temporal resolution using version 1.3 of the Teddy tool (Zabel and Poschlod, 2023). The methodology for temporal disaggregation in Teddy is based on the choice of daily climate analogues. As a reference, globally available bias-corrected hourly reanalysis WFDE5 (WATCH Forcing Data methodology applied to ERA5) data from 1980 – 2019 (Cucchi et al. 2020) are used to take specific local and seasonal features of the empirical diurnal profiles into account. For a given location and day within the climate model data, the Teddy tool screens the reference data set to find the most similar meteorological day based on rank statistics. The diurnal profile of the reference data is then applied to the climate model. Teddy strictly preserves daily mass and energy from the climate models, and maintains temporal coherence between variables. Teddy is described and validated in detail by Zabel and Poschlod (2023). The code is available open-source (https://github.com/flozabel/Teddy). global -179.5 179.5 -89.5 89.5